The ICC has said it will take action against any fans involved in "scuffles" before the match between Pakistan and Afghanistan at Headingley on Saturday. Local media reported that the trouble started when a plane towing the message 'Justice for Balochistan' flew over the venue.

from Times of India https://timesofindia.indiatimes.com/sports/cricket/icc-world-cup/pakistan-vs-afghanistan-cricket-world-cup-icc-to-take-action-after-fans-clash-at-pak-afghan-match/articleshow/70004160.cms